﻿using System;
using System.Text;
using System.Text.RegularExpressions;

namespace GPS_DB
{
    ///<summary>
    ///汉字拼音声母计算类
    ///</summary>
    public class ChineseConvertor
    {
        private ChineseConvertor() { }

        ///<summary>
        ///获取一串汉字的拼音声母
        ///</summary>
        ///<param name="chinese">Unicode格式的汉字字符串</param>
        ///<returns>拼音声母字符串</returns>
        ///<example>
        ///“德智体美”转换为“dztm”
        ///</example>
        public static String Convert(String chinese)
        {
            chinese = chinese.Replace(" ", "");
            char[] buffer = new char[chinese.Length];
            for (int i = 0; i < chinese.Length; i++)
            {
                buffer[i] = Convert(chinese[i]);
            }
            return new String(buffer);
        }

        ///<summary>
        ///获取一个汉字的拼音声母   
        ///</summary>
        ///<param name="chinese">Unicode格式的一个汉字</param>
        ///<returns>汉字的声母</returns>
        ///<example>
        ///“德智体美”转换为“dztm”
        ///</example>
        public static char Convert(Char chinese)
        {
            if (chinese == char.MinValue)
            {
                return '\0';
            }
            Encoding gb2312 = Encoding.GetEncoding("GB2312");
            Encoding unicode = Encoding.Unicode;

            //   Convert   the   string   into   a   byte[].   
            byte[] unicodeBytes = unicode.GetBytes(new Char[] { chinese });
            //   Perform   the   conversion   from   one   encoding   to   the   other.   
            byte[] asciiBytes = Encoding.Convert(unicode, gb2312, unicodeBytes);

            //   计算该汉字的GB-2312编码   
            int n = (int)asciiBytes[0] << 8;
            if (asciiBytes.Length > 1)
            {
                n += (int)asciiBytes[1];
            }
            else
            {
                return '\0';
            }
            //   根据汉字区域码获取拼音声母   
            if (In(0xB0A1, 0xB0C4, n)) return 'a';
            if (In(0XB0C5, 0XB2C0, n)) return 'b';
            if (In(0xB2C1, 0xB4ED, n)) return 'c';
            if (In(0xB4EE, 0xB6E9, n)) return 'd';
            if (In(0xB6EA, 0xB7A1, n)) return 'e';
            if (In(0xB7A2, 0xB8c0, n)) return 'f';
            if (In(0xB8C1, 0xB9FD, n)) return 'g';
            if (In(0xB9FE, 0xBBF6, n)) return 'h';
            if (In(0xBBF7, 0xBFA5, n)) return 'j';
            if (In(0xBFA6, 0xC0AB, n)) return 'k';
            if (In(0xC0AC, 0xC2E7, n)) return 'l';
            if (In(0xC2E8, 0xC4C2, n)) return 'm';
            if (In(0xC4C3, 0xC5B5, n)) return 'n';
            if (In(0xC5B6, 0xC5BD, n)) return 'o';
            if (In(0xC5BE, 0xC6D9, n)) return 'p';
            if (In(0xC6DA, 0xC8BA, n)) return 'q';
            if (In(0xC8BB, 0xC8F5, n)) return 'r';
            if (In(0xC8F6, 0xCBF0, n)) return 's';
            if (In(0xCBFA, 0xCDD9, n)) return 't';
            if (In(0xCDDA, 0xCEF3, n)) return 'w';
            if (In(0xCEF4, 0xD188, n)) return 'x';
            if (In(0xD1B9, 0xD4D0, n)) return 'y';
            if (In(0xD4D1, 0xD7F9, n)) return 'z';
            return '\0';
        }

        private static bool In(int Lp, int Hp, int Value)
        {
            return ((Value <= Hp) && (Value >= Lp));
        }

        #region unicode value
        private static int[] getValue = new int[]
        {
         -20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036,
         -20032,-20026,-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763,
         -19756,-19751,-19746,-19741,-19739,-19728,-19725,-19715,-19540,-19531,-19525,-19515,
         -19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,-19261,-19249,
         -19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,
         -19003,-18996,-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,
         -18731,-18722,-18710,-18697,-18696,-18526,-18518,-18501,-18490,-18478,-18463,-18448,
         -18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183, -18181,-18012,
         -17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,
         -17733,-17730,-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,
         -17468,-17454,-17433,-17427,-17417,-17202,-17185,-16983,-16970,-16942,-16915,-16733,
         -16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459,-16452,-16448,
         -16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216,
         -16212,-16205,-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,
         -15933,-15920,-15915,-15903,-15889,-15878,-15707,-15701,-15681,-15667,-15661,-15659,
         -15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416,-15408,-15394,
         -15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150,
         -15149,-15144,-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,
         -14941,-14937,-14933,-14930,-14929,-14928,-14926,-14922,-14921,-14914,-14908,-14902,
         -14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668,-14663,-14654,
         -14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345,
         -14170,-14159,-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,
         -14109,-14099,-14097,-14094,-14092,-14090,-14087,-14083,-13917,-13914,-13910,-13907,
         -13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658,-13611,-13601,
         -13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343,
         -13340,-13329,-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,
         -13068,-13063,-13060,-12888,-12875,-12871,-12860,-12858,-12852,-12849,-12838,-12831,
         -12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346,-12320,-12300,
         -12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798,
         -11781,-11604,-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,
         -11055,-11052,-11045,-11041,-11038,-11024,-11020,-11019,-11018,-11014,-10838,-10832,
         -10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331,-10329,-10328,
         -10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254
        };
        #endregion

        #region pingyin
        private static string[] getName = new string[]
        {
         "A","Ai","An","Ang","Ao","Ba","Bai","Ban","Bang","Bao","Bei","Ben",
         "Beng","Bi","Bian","Biao","Bie","Bin","Bing","Bo","Bu","Ba","Cai","Can",
         "Cang","Cao","Ce","Ceng","Cha","Chai","Chan","Chang","Chao","Che","Chen","Cheng",
         "Chi","Chong","Chou","Chu","Chuai","Chuan","Chuang","Chui","Chun","Chuo","Ci","Cong",
         "Cou","Cu","Cuan","Cui","Cun","Cuo","Da","Dai","Dan","Dang","Dao","De",
         "Deng","Di","Dian","Diao","Die","Ding","Diu","Dong","Dou","Du","Duan","Dui",
         "Dun","Duo","E","En","Er","Fa","Fan","Fang","Fei","Fen","Feng","Fo",
         "Fou","Fu","Ga","Gai","Gan","Gang","Gao","Ge","Gei","Gen","Geng","Gong",
         "Gou","Gu","Gua","Guai","Guan","Guang","Gui","Gun","Guo","Ha","Hai","Han",
         "Hang","Hao","He","Hei","Hen","Heng","Hong","Hou","Hu","Hua","Huai","Huan",
         "Huang","Hui","Hun","Huo","Ji","Jia","Jian","Jiang","Jiao","Jie","Jin","Jing",
         "Jiong","Jiu","Ju","Juan","Jue","Jun","Ka","Kai","Kan","Kang","Kao","Ke",
         "Ken","Keng","Kong","Kou","Ku","Kua","Kuai","Kuan","Kuang","Kui","Kun","Kuo",
         "La","Lai","Lan","Lang","Lao","Le","Lei","Leng","Li","Lia","Lian","Liang",
         "Liao","Lie","Lin","Ling","Liu","Long","Lou","Lu","Lv","Luan","Lue","Lun",
         "Luo","Ma","Mai","Man","Mang","Mao","Me","Mei","Men","Meng","Mi","Mian",
         "Miao","Mie","Min","Ming","Miu","Mo","Mou","Mu","Na","Nai","Nan","Nang",
         "Nao","Ne","Nei","Nen","Neng","Ni","Nian","Niang","Niao","Nie","Nin","Ning",
         "Niu","Nong","Nu","Nv","Nuan","Nue","Nuo","O","Ou","Pa","Pai","Pan",
         "Pang","Pao","Pei","Pen","Peng","Pi","Pian","Piao","Pie","Pin","Ping","Po",
         "Pu","Qi","Qia","Qian","Qiang","Qiao","Qie","Qin","Qing","Qiong","Qiu","Qu",
         "Quan","Que","Qun","Ran","Rang","Rao","Re","Ren","Reng","Ri","Rong","Rou",
         "Ru","Ruan","Rui","Run","Ruo","Sa","Sai","San","Sang","Sao","Se","Sen",
         "Seng","Sha","Shai","Shan","Shang","Shao","She","Shen","Sheng","Shi","Shou","Shu",
         "Shua","Shuai","Shuan","Shuang","Shui","Shun","Shuo","Si","Song","Sou","Su","Suan",
         "Sui","Sun","Suo","Ta","Tai","Tan","Tang","Tao","Te","Teng","Ti","Tian",
         "Tiao","Tie","Ting","Tong","Tou","Tu","Tuan","Tui","Tun","Tuo","Wa","Wai",
         "Wan","Wang","Wei","Wen","Weng","Wo","Wu","Xi","Xia","Xian","Xiang","Xiao",
         "Xie","Xin","Xing","Xiong","Xiu","Xu","Xuan","Xue","Xun","Ya","Yan","Yang",
         "Yao","Ye","Yi","Yin","Ying","Yo","Yong","You","Yu","Yuan","Yue","Yun",
         "Za", "Zai","Zan","Zang","Zao","Ze","Zei","Zen","Zeng","Zha","Zhai","Zhan",
         "Zhang","Zhao","Zhe","Zhen","Zheng","Zhi","Zhong","Zhou","Zhu","Zhua","Zhuai","Zhuan",
         "Zhuang","Zhui","Zhun","Zhuo","Zi","Zong","Zou","Zu","Zuan","Zui","Zun","Zuo"
        };
        #endregion


        /// <summary>汉字转换成全拼的拼音</summary>
        /// <param name="Chstr">汉字字符串</param>
        /// <returns>转换后的拼音字符串</returns> 
        public static string StrConvertToPinyin(string Chstr)
        {
            Regex reg = new Regex("^[\u4e00-\u9fa5]$");//验证是否输入汉字
            byte[] arr = new byte[2];
            string pystr = "";
            int asc = 0, M1 = 0, M2 = 0;
            char[] mChar = Chstr.ToCharArray();//获取汉字对应的字符数组
            for (int j = 0; j < mChar.Length; j++)
            {
                //如果输入的是汉字
                if (reg.IsMatch(mChar[j].ToString()))
                {
                    arr = System.Text.Encoding.Default.GetBytes(mChar[j].ToString());
                    M1 = (short)(arr[0]);
                    M2 = (short)(arr[1]);
                    asc = M1 * 256 + M2 - 65536;
                    if (asc > 0 && asc < 160)
                    {
                        pystr += mChar[j];
                    }
                    else
                    {
                        switch (asc)
                        {
                            case -9254:
                                pystr += "Zhen"; break;
                            case -8985:
                                pystr += "Qian"; break;
                            case -5463:
                                pystr += "Jia"; break;
                            case -8274:
                                pystr += "Ge"; break;
                            case -5448:
                                pystr += "Ga"; break;
                            case -5447:
                                pystr += "La"; break;
                            case -4649:
                                pystr += "Chen"; break;
                            case -5436:
                                pystr += "Mao"; break;
                            case -5213:
                                pystr += "Mao"; break;
                            case -3597:
                                pystr += "Die"; break;
                            case -5659:
                                pystr += "Tian"; break;
                            default:
                                for (int i = (getValue.Length - 1); i >= 0; i--)
                                {
                                    if (getValue[i] <= asc) //判断汉字的拼音区编码是否在指定范围内
                                    {
                                        pystr += getName[i];//如果不超出范围则获取对应的拼音
                                        break;
                                    }
                                }
                                break;
                        }
                    }
                }
                else    //如果不是汉字
                {
                    pystr += mChar[j].ToString();//如果不是汉字则返回
                }
            }
            return pystr;//返回获取到的汉字拼音
        }

    //end*****************************************************************************
    }

}
